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A Look at 3D Printing and Open Source

"Arthur C. Clarke said "Any sufficiently advanced technology is
indistinguishable from magic." And it's still magical when you
understand how it works. 3D printers are here, they're cool, and
there is a large and enthusiastic open source 3D printer
movement...

3D printers produce physical objects from a computer file with a
few mouse clicks. A cursory look at this technology might make it
appear to be little more than yet another way to squeeze out more
cheap plastic junk. But it is much more than cheap plastic junk;
it's an amazingly fast way to prototype new products, and to
customize small runs.